What is the history behind the Predators?
4 Predators movies and two spinoffs and we know almost close to none information about the Predators.
We knew they helped our ancestors build the wonders of the world (Info from AVP), that the come here to upgrade (Predator 2018), that they hunt in the hottest years (Predator 2).
But who are they, what are they, are they connected with the Engineers from the Alien Saga.